I tore my ACL 1.5 years ago playing soccer, and went through a similar surgery as the OP at NYU Langone Medical Center in New York. Interestingly, my final bill for the surgery (including the same things as the OP) was almost the same - $67k and change.
However, more importantly, the actual amount paid to the doctor/hospital etc. was $18k, of which I think I had to pay around $2k, insurance covered the rest. So while the sticker price might be $67k, the actual cost is significantly lesser. In the bills that I saw from my insurance company (BCBS), for each line item, they would have a column for "Allowed Amount" or something like that which generally varied between 20-30% of the billed amount.
On a different note, I don't whether the cost would have been the whole $67k if I was uninsured. I hope not. But if yes, that's really punitive to the people who can least afford it. For that matte, even a 18k cost is prohibitively expensive for someone who cannot afford insurance.